Title of article
Extraction of Ni and Co via D2EHPA in the Presence of Acetate Ion
Author/Authors
-، - نويسنده Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413 Tehran, I.R. IRAN Nadimi, Hamed , -، - نويسنده Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413 Tehran, I.R. IRAN Haghshenas Fatmehsari, Davoud , -، - نويسنده Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box 15875-4413 Tehran, I.R. IRAN Firoozi, Sadegh
Issue Information
فصلنامه با شماره پیاپی 76 سال 2015
Pages
7
From page
61
To page
67
Abstract
-
Abstract
The effect of acetate ion introduced to aqueous solutions was investigated for the extraction/separation of Ni and Co from a dilute sulfate media. The separation of Co and Ni was improved by introducing acetate to aqueous media. By the use of the slope analysis method,the stoichiometric coefficient of the extractant was found to be 4 for cobalt and 3.5 or 4 for nickel depending on the acetate concentration. Fourier Transform Infrared Spectroscopy (FT-IR) was utilized to examine the probable“metal-acetate-D2EHPA” complexes. Increasing the level of acetate, up to 0.4 M showed a relatively significant effect on the extraction curve of Ni, but there was no influence in the Co extraction curve. At the acetate level of 0.6 M, the pH difference at 70 extraction percentage reached ~0.55 in compared to ~0.2in the absence of acetate.
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Serial Year
2015
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Record number
2332322
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